Page 450 - Math Smart - 7

Check My Understanding (Pg 226) 2. Cube - fourth net
1. a) Correct if the triangle is repiicated correctly in Cuboid - third net
different orientations Triangular Prism - sixth net
b) Correct if the rectangle is replicated correctly in Cylinder - second net
different orientations Pentagonal Prism - first net
c) Correct if the hexagon is replicated correctly in Pyramid - fifth net
different orientations 3. Equilateral Triangle, 3, 3
d) Correct if the pentagon is replicated correctly in Infinity Symbol, 2, 2
different orientations Yen Symbol, 1, 1
e) Correct if the octagon is replicated correctly in Regular Hexagon, 6, 6
different orientations Dollar Symbol, 0, 2
2. a) Rhombus b) Trapezium Extinction Symboi, 2, 2
c) Parallelogram d) Kite 4. Answers may vary, accept all symmetrical answers

Check My Understanding (Pg 228)
1. a) Cube, 6, 12. 8 b) Cuboid, 6, 12, 8 Unit 11
c) Cylinder, 2, 2, 0 d)Cone, 1,0, 1
Recall (Pg 244)
e) Sphere, 1, 0, 0
1. Describe an object using (X-Axis, Y-axis)
2. a) No
Check My Understanding (Pg 232)
b) Mark an X on points (1,1), (2,5), (4,1) and label them
1. a) Pyramid, 5, 5, 8
accordingly
b) Cube, 6, 8, 12
c) Pentagonal Prism, 7, 10, 15
d) Cuboid, 6, 8, 12 B
e) 6-Sided Pyramid, 6, 7, 12
f) Trapezoid Prism, 6, 8, 12
2. a) Triangular Prism, 5, 9, 6
b) Pyramid, 4, 6, 4
A
c) Pentagonal prism, 7,10, 15
1 2 3 4 5
Recall (Pg 233)
c) Mark an X on points (0,4), (3,1), (5,3) and label them
1. Circle the second, third and fourth shape
2. Circle the first, third and fifth shape accordingly
Draw 2 lines, 1 connecting (0,4) and (3,1) and 1
Check My Understanding (Pg 234) connecting (4,4) and (5,3)
1. a)1 b)4
2. a) yes b) no
5 k
Check My Understanding (Pg 235)
Colour in the symmetrical shapes with similar colours and
design a pattern with symmetry
Check My Understanding (Pg 237)
1. Only H and S have an order of 2
1 2 3 4 5
2. Oval has order of 2
Check My Understanding (Pg 248)
Plus-sign has order of 4
1.
Arrow-plus-sign has order of 4
Dual-triangles has order of 2
3. a) Shade the uppermost right square B
b) Line of symmetry is horizontal A
r.
c) Shade the uppermost left square
d) Line of symmetry is diagonal from left to right
e) Shade the uppermost middle square D
4. Replicate the figure but flip it so the white part looks like g' k /
an "S" /f
5. a) 1, 1 b)1,1 c)3, 3 d)4, 4 e) 2, 2 f) 0, 2
g)2,2 h)0. 1 1)1, 1 j)5,5 k)6,6 1)8,8
n 5 - 4 -3 - ? _ U
.-,1..
Revision (Pg 239)
The shape is a heptagon.
1. a) Correct if the cross is replicated correctly in different
orientations
b) Correct if the arrow is replicated correctly in different
orientations

Answers